SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): OCTOBER 13, 2004 ASPEN INSURANCE HOLDINGS LIMITED (Exact name of registrant as specified in its charter) BERMUDA 001-31909 NOT APPLICABLE (State or other jurisdiction (Commission (I.R.S. Employer of incorporation) File Number) Identification No.) VICTORIA HALL 11 VICTORIA STREET HAMILTON HM 11 BERMUDA (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (441) 295-8201 NOT APPLICABLE (Former name or former address, if changed since last report) -------------------------------------------------------------------------------- ITEM 7.01 REGULATION FD DISCLOSURE On October 13, 2004, Aspen Insurance Holdings Limited issued a press release relating to its estimated losses as a result of Hurricanes Charley, Frances, Ivan and Jeanne, as well as Typhoon Songda, which has been attached as Exhibit 99.1. ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS (c) The following exhibit is furnished as part of this report: 99.1 Press Release of the Registrant, dated October 13, 2004. 2 -------------------------------------------------------------------------------- SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ASPEN INSURANCE HOLDINGS LIMITED (Registrant) Dated: October 13, 2004 By: /s/ Julian Cusack ---------------------------- Name: Julian Cusack Title: Chief Financial Officer 3 -------------------------------------------------------------------------------- INDEX TO EXHIBITS EXHIBIT NO. DESCRIPTION ----------- ---------------------------------------------------------------- 99.1 Press Release of the Registrant dated October 13, 2004. 4 --------------------------------------------------------------------------------